Photos: Prepping for the X Prize
The Avion Car Company of Washington has been building environmentally friendly cars for the past 20 years using recycled components. It achieved 103.7 mpg on a drive from Mexico to Canada in 1986 -- a time when no one really cared. Recent tests have it hitting 114 mpg with an average speed of 55 mph.
Credit: Avion
Based on Images: 100 miles per gallon or bust! on CNET News.com

